Atlas Games has sorted out those other magic systems for your d20 games. You know: Alchemy, Astrology, Geomancy, and the rest. In all, ten new magic systems will be described in Occult Lore, giving spell-users more options than they could ever need. The book will also contain an assortment of new creatures, spells, magic items, PC and NPC classes, prestige classes, and domains We can expect to see the 240-page supplement around May.